13911118 has 16 divisors (see below), whose sum is σ = 22538880. Its totient is φ = 6401376.

The previous prime is 13911109. The next prime is 13911119. The reversal of 13911118 is 81111931.

It is a junction number, because it is equal to n+sod(n) for n = 13911092 and 13911101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13911119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11896 + ... + 13012.

It is an arithmetic number, because the mean of its divisors is an integer number (1408680).

Almost surely, 2^13911118 is an apocalyptic number.

13911118 is a deficient number, since it is larger than the sum of its proper divisors (8627762).

13911118 is a wasteful number, since it uses less digits than its factorization.

13911118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611.

The product of its digits is 216, while the sum is 25.

The square root of 13911118 is about 3729.7611183560. The cubic root of 13911118 is about 240.5030997334.

It can be divided in two parts, 139111 and 18, that added together give a square (139129 = 373²).

The spelling of 13911118 in words is "thirteen million, nine hundred eleven thousand, one hundred eighteen".